A nurse determined the interobserver reliability of a blood pressure reading. Which of the following describes the method that was used by the nurse?
a. Blood pressure readings of 124/82 were obtained two days in a row by two different nurses.
b. Three consecutive blood pressure readings of 124/82 were obtained by the same nurse.
c. Blood pressure readings of 124/82 in the right arm and 124/82 in the left arm were obtained.
d. A blood pressure reading of 124/82 was obtained immediately followed by another blood pressure reading of 147/92.
Answer: a. Blood pressure readings of 124/82 were obtained two days in a row by two different nurses.
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